title: Sclerosing polidocanol injections or arthroscopic shaving to treat patellar tendinopathy/jumper's knee? A randomised controlled study.
abstract: BACKGROUND
  Proximal patellar tendinopathy/jumper's knee (PT/JK) is well known to be difficult to treat. Recent studies using an ultrasound and colour Doppler-based treatment approach on the dorsal side of the tendon, sclerosing polidocanol injections and ultrasound-guided arthroscopic shaving, have shown promising clinical results.
  
  
  OBJECTIVE
  To compare the clinical effects after treatment with sclerosing polidocanol injections and arthroscopic shaving.
  
  
  METHODS
  52 patellar tendons (43 men and two women) with ultrasound and colour Doppler-verified diagnosis of PT/JK were randomly assigned to treatment with ultrasound and colour Doppler-guided sclerosing polidocanol injections (group A) or ultrasound and colour Doppler-guided arthroscopic shaving (group B). All patients were involved in patellar tendon loading sports or recreational activities, and had had a long duration of pain symptoms from the proximal patellar tendon. Pain during patellar tendon loading activity, and at rest, before and after treatment (visual analogue scale; VAS), and patient satisfaction with the result of the treatment, was registered.
  
  
  RESULTS
  After treatment, the patients treated with arthroscopic shaving had a significantly lower VAS score at rest and during activity, and were significantly more satisfied compared with the patients in the sclerosing injection group.
  
  
  CONCLUSIONS
  Both treatment with ultrasound and colour Doppler-guided sclerosing polidocanol injections and arthroscopic shaving showed good clinical results, but patients treated with arthroscopic shaving had less pain and were more satisfied with the treatment result. Because surgical treatment is a one-stage treatment return to sports was faster in this group.
authors.affiliation: Capio Artro Clinic, Stockholm Sports Trauma Research Centre, Karolinska Institutet, Stockholm, Sweden. lotta.willberg@capio.se
authors.forename: Lotta
authors.initials: L
authors.lastname: Willberg
authors.forename: Kerstin
authors.initials: K
authors.lastname: Sunding
authors.forename: Magnus
authors.initials: M
authors.lastname: Forssblad
authors.forename: Martin
authors.initials: M
authors.lastname: Fahlström
authors.forename: Håkan
authors.initials: H
authors.lastname: Alfredson
mesh_terms: D000293:Adolescent; D000328:Adult; D001182:Arthroscopy / Q000379:methods*; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D017847:Patellar Ligament; D000077423:Polidocanol; D011092:Polyethylene Glycols / Q000008:administration & dosage*; D020127:Recovery of Function; D012597:Sclerosing Solutions / Q000008:administration & dosage*; D052256:Tendinopathy / Q000628:therapy*; D014142:Track and Field; D016896:Treatment Outcome; D018615:Ultrasonography, Doppler, Color; D018084:Ultrasonography, Interventional; D055815:Young Adult
chemical_list: D012597:Sclerosing Solutions; D000077423:Polidocanol; D011092:Polyethylene Glycols